When ecosystems collide in the arid Southwest.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

See massive fossils that are over 200 million years old in northeastern Arizona.

Famously misunderstood wonder of the ancient world

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Towering basalt columns, a creation of fire and ice.

A modernist landscape of water and sci-fi concrete.

Staves, storm-calling, and of course, necropants.

The largest self-built castle in the U.S., six decades in the making.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The 10,000 Torii shrine.

A beautiful geyser under environmental threat.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

The sign at the garden gate reads: “These Plants Can Kill.”

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Home to items never before seen by the public.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The beautiful baroque library of the Hapsburg empire.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.